Home / 18,777.81-28,143.30-16,432.24

Finding the Fourth Proportional to 18,777.81, 28,143.30 and 16,432.24

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Solution

The fourth proportional to 18,777.81, 28,143.30 and 16,432.24 is: 24,627.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.81 : 28,143.30 = 16,432.24 : x
  2. Step 2: Convert to fraction form
    18,777.81/28,143.30 = 16,432.24/x
  3. Step 3: Cross multiply
    18,777.81x = 28,143.30 × 16,432.24
  4. Step 4: Simplify right side
    18,777.81x = 462,457,459.99
  5. Step 5: Solve for x
    x = 462,457,459.99/18,777.81
  6. Step 6: Final answer
    x = 24,627.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.